| 线材无模拉拔成形力数学模型研究 |
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| 引用本文： | 郭颖,王忠堂,武小娟.线材无模拉拔成形力数学模型研究[J].数学的实践与认识,2010,40(8). |
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| 作者姓名： | 郭颖 王忠堂 武小娟 |
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| 作者单位： | 1. 沈阳工程学院,基础部,辽宁,沈阳,110136
2. 沈阳理工大学,材料科学与工程学院,辽宁,沈阳,110159 |
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| 基金项目： | 辽宁省教育厅科学研究计划资助项目(2004D020) |
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| 摘 要： | 采用上限法确定了钨合金线材无模拉拔成形速度场及力能参数物理模型.分析了钨合金线材无模拉拔成形的变形模型、速度场以及力能参数的影响因素及影响规律,无模成形力能参数的影响因素主要有冷热源间距、断面减缩率、变形温度、拉伸速度、冷热源移动速度以及材料种类等,为无模拉拔成形工艺工业化应用奠定基础.
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| 关 键 词： | 无模拉拔 力能参数 速度场 上限法 |
Study on Mathematical Model of Forming Force During Wire Dieless Drawing |
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| GUO Ying,WANG Zhong-tang,WU Xiao-juan.Study on Mathematical Model of Forming Force During Wire Dieless Drawing[J].Mathematics in Practice and Theory,2010,40(8). |
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| Authors: | GUO Ying WANG Zhong-tang WU Xiao-juan |
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| Institution: | GUO Ying~1,WANG Zhong-tang~2,WU Xiao-juan~2 (1.Foundation Department,Shenyang Institute of Engineering,Shenyang 110136) (2.School of Materials Science , Engineering,Shenyang Ligong University,Shenyang 110159) |
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| Abstract: | Dieless drawing is a newly development flexible metal forming technique without dies which is only according to the character that the metal flow stress varies as deformation temperature.On the basis of analysis in deformation mechanism and velocity field of wire dieless drawing,drawing force and velocity field are studied theoretically,and the formulas have been determined by means of Up Boundary method.It has been found that the theoretical calculating results of dieless drawing force are very approximate... |
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| Keywords: | dieless drawing drawing force velocity field up boundary method |
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